How do I identify Polycrase-(y)?

Polycrase-(y) can be identified by its hardness of 5 - 6 on the Mohs scale, Black color. Look for these key characteristics when examining specimens.

What color is Polycrase-(y)?

Polycrase-(y) typically appears in Black. Color can vary depending on impurities and formation conditions.

How hard is Polycrase-(y)?

Polycrase-(y) has a hardness of 5 - 6 on the Mohs scale. This gives it moderate hardness.

How to Identify Polycrase-(y) | Properties, Meaning & Uses

What is Polycrase-(y)?

Polycrase or polycrase-(Y) is a black or brown metallic complex uranium yttrium oxide mineral with formula: (Y,Ca,Ce,U,Th)(Ti,Nb,Ta)2O6. It is amorphous. It has a Mohs hardness of 5 to 6 and a specific gravity of 5. It is radioactive due to its uranium content (around 6%). It occurs in granitic pegmatites. Polycrase forms a continuous series with the niobium rich rare earth oxide euxenite. It was first described in 1870 at Rasvag, Hidra (Hittero) Island, near Flekkefjord, Norway. It is found in Sweden, Norway, and the United States.

Polycrase-(y) Market Value Calculator

Estimate the market value of Polycrase-(y) using size, quality, and finish. This preview calculator is for quick context and is not a formal appraisal.

Polycrase-(y) Localities Map

See where Polycrase-(y) is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.